If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
The object of the game is to round up all of the farm animals before the sun goes down. You round them up by stretching and twisting Rancher Bill's Booger around them. Using the mouse, move the red x around the screen and Rancher Bill will run towards it. If you click your mouse button, Rancher Bill will begin stretching the booger. Move Rancher Bill around the field and click each time you want to make a new twist. Any farm animals inside the area get rounded up and you earn points for them. But if you catch any critters it wont be rounded up. Watch out for the twist and stretch or it will break up.
Use your mouse to interact.